html,
body {
    height: 100%;
}

body{
    background: linear-gradient(to bottom, #96c4fd, #adcefc);  
}
.cloud-box{
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 113px;
    background: url(../images/cloudBg.png) no-repeat center center;
    background-size: 100% 100%;
    z-index: -1;
}
.piano-box {
    display: flex;
    align-items: center;
    height: 100%;
    min-width: 1000px;
    max-width: 1600px;
    margin: 0 auto;
}

.nav-box {
    width: 80%;
    margin: 0 auto;
    display: flex;
}
.left-side>.title{
    height: 40px;
    text-align: center;
    font-size: 20px;
    font-weight: bold;
    color: #fff;
}
.left-side {
    width: 70%;
    background: linear-gradient(to bottom, #579aff, #6b4cfe);
    padding: 20px;
    margin-right: 30px;
    height: 663px;
    font-size: 20px;
    position: relative;
    overflow: hidden;
    box-sizing: border-box;
    border-radius: 20px;
}
.left-side-con{
    width: 100%;
    height: 580px;
    background: #fff;
    border-radius: 10px;
    padding: 20px;
    box-sizing: border-box;
    position: relative;
}
.left-side-con .flex-box{
    display: flex;
}
.left-side-con .flex-box img{
    width: 80px;
    height: 80px;
    margin-right: 30px;
}
.left-side-con .flex-box .txt{
    font-size: 14px;
    color: #d1d1d1;
}
.left-side-con .flex-box .txt p{
    margin: 10px 0;
}
.left-side-con .flex-box .txt p span{
    color: #5799ff;
    vertical-align: sub;
    margin:0 5px;
    font-size: 26px;
}
.icon{
    display: block;
}

.right-side {
    width: 30%;
    display: flex;
    flex-direction: column;
    font-size: 25px;
}
.right-side-item{
    padding: 20px;
    padding-top: 35px;
    box-sizing: border-box;
    margin-bottom: 20px;
    color: #fff;
    position: relative;
    overflow: hidden;
    height: 150px;
    cursor: pointer;
}
.right-side-item p:nth-child(2){
    font-size: 20px;
    margin-top: 10px;
    opacity: 0.8;
}
.right-one {
    background: linear-gradient(to bottom,#63b6f5, #2a66df);
}

.right-two {
    background: linear-gradient(to bottom,#98df76, #3e7c5a);
}

.right-three {
    background: linear-gradient(to bottom,#e9d67b, #d39c48);
}
.right-four {
    background: linear-gradient(to bottom,#b07fe9, #794cc6);
}


.fillet {
    border-radius: 20px;
}

.center {
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

.no-select {
    -webkit-user-select: none; /* Safari */
    -moz-user-select: none; /* Firefox */
    -ms-user-select: none; /* IE10+ */
    user-select: none; /* Standard syntax */
  }


  .plan-list{
    margin-top: 10px;
  }
  .plan-list #todoList{
    height: 400px;
    overflow-y: auto;
  }